Benjamin f



` BENJAlVllN F. HORN, OF BOSTON, MASSACHUSETTS.

Letters Patent No. 92,449, dated Efilly i3, 1869.

ASH-SIFTER.

The ScheduIe referred to in these Letters Patent and making part of the same.

To all persons to whom these presents may come: Near its Crank, the Shaft is provided with one or Be it known that I, BENJAMIN F. HORN, of Boston, more grooves, l l, extending transversely around it. in the county of Suffolk, and State of Massachusetts, At or near its opposite end, it terminates in a long ha ve invented a new and useful Improvement in Coal journal', mi, furnished with a shouldered head, n. The or Ash-Sitters; and I do herebydeclare the same to shoulder ofthe head, by resting aga-inst the periphery be fully described in the following specification, and of theilange ofthe cover, serves to keep the shaft in its WX represented in the accompanying drawings, of whichdue relation with the cover.

vFigure 1 denotes an under-side view of the siftcrdrum, and its cap or cover, the same showing the door of the drum, and the appliances by which it is held in place', with respect to the mouth of the drum, while the said (huni may be in revolution.

Figure 2 is a longitudinal section, and

Figure 3, a transverse section of the sifter.

The cap or cover of the sifting-(hum consists of a square box, A, and a circular base or iiange,'B,tI1e. said box being elevated on the circular base-,and made to open through it. v

i Y Thecircuniference of the base, I usually surround with a metallic band or hoop, a.

When in use, the cap or cover rests directlyover the rotary sifting-drum C, and its shaft D.

The sifting-(hum is composed of two circula-r heads, l1 l), and a peripheral rim or jacket, c, of woven wire, there being an open space or mouth, ll, between the ends of the rim.

There is, to suoli space, a door, E, :made of a sheet, e, of woven wire, and a frani'e, j, to embrace and sup-4 port the edges ofthe sheet. A v

This door rests on the circuinferences of the two heads, and, at one end, extends underneath two hooked lugs, g g, projecting from the head.

\Vhen in place over its opening, or the mouth of the drum, the door also rests a-gaiust a stud, lz., which extends from the other head, and serves, with two turnbuttons, t' 1i, applied to the head, near the opposite corners' of thev door,-and so asto button over the door, to hold the door to the drum. f

A shaft, l), provided with a crank, G, extends axially through the drum, and the notches of two'guides or projections, le 1.', extend' down from the cover. These guides merely support the shaft in the middle of the cover, or keep it therein.

The cover and the drum, with the shaft, made as described, are intended for use either over a box or a barrel.

As barrels vary more or less in diameter, the shaft, by means of the transverse groove and the long journal, can be adapted to any barrel, the groove receiving the upper extremity of one of the staves of the open end of the. barrel, when the is placed diametrically across the barrel, in which case the long journal will rest on the upper end of the opposite stave. The cover, havingl a circular base, will close the barrel, so to prevent the escape of ashes therefrom while the drum niay be in revolution, such ldrum being revolved by manual power applied to the crank.

I make no claim to a cylindrical drum as a. sifter, nor the combination of such with a case, to surround the drum more or less; nor do I claim the combination of such (hum and case with a vessel or box to receive the siftings, or matters which may be discharged by the drum. p

What Ipcl'aini as of my invention, follows:

l claim the drum-shaft, as made, with the transverse groove, (arranged near one end of the dru1n,) and with the lon g journal and head to extend beyond the other end of such drum, as set forth, the same being as speci# fied.

l also claim the combination and arrangement of devices for holding the mouth-piece or door ofthe sifting-drum in place on the mouth of the drum, such de* vices consistingof thc two hooked lugs, the stud, and the two turn-lnitti'ms, the whole being to operate as specified.

B. F. HORN.

Witnesses.: 

